Know what's even more effective and cheap than Private Law Enforcement? Torturing suspects until they confess and shooting them on the spot if they are guilty.

Know what's even more effective and cheap than Private Law Enforcement? Torturing suspects until they confess and shooting them on the spot if they are guilty. My point is, this is not about effectiveness, but about legality. A constitutional democracy needs to stay constitutional and legal in its ways of delivering justice, otherwise it's not a constitutional democracy anymore but an anarchy. Giving private individuals the right to legally kidnap people, as well as massive privacy violations like stated in the OP's article — without any oversight — at least to me looks like a massive violation of the Fourth Amendment.